Recycling of industrial and agricultural wastes as alternative coarse
Artificial aggregates are also gaining importance at present. Industrial by-products like fly ash, silica fume, ground granulated blast furnace slag etc., are used to The use of marble powder or slurry for the production of concrete is an important step from the sustainability point of view. The aggregate produced from the marble mining waste Full article: A brief review on sustainable utilisation of marble waste
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Overview of Indian aggregate industry Indian Cement Review
Aggregate includes coarse aggregate, river sand and gravel, M-sand and aggregate for other applications. Other applications includes road base, railway ballast, Sanniv Shome, Shushil Mhaske, K. Pathak, M S Tiwari. Abstract: Mother Nature has bestowed India with huge resources of coal, iron ore, bauxite, manganese Mine Waste as Resource: Indian Mining Scenario of Coal
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Influence of coarse coal gangue aggregates on
This paper presents the properties of structural concrete influenced by replacing, coarse aggregate with Coarse coal gangue and cement with nano-silica. The coarse aggregate is partially replaced by 30%, 35%, 40% and 50% with cupola slag without replacing the natural sand. All the mix proportions of designed Effect of cupola slag as a coarse aggregate on
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Impact of marble waste as coarse aggregate on
Conventional natural coarse aggregate was replaced by marble aggregate in different percentages 0–100% by weight. The concrete formulations were prepared open access Highlights • Well-prepared granite waste can be used as coarse aggregate. • The morphological parameters of the aggregates were determined. • Potential use of granite waste sourced from rock processing
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Sustainable Use of Waste Material as Coarse Aggregate
coarse aggregate is growing more to meet increasing demand, this increasing demand is causing for non-availability of conventional coarse aggregate for The aggregate with the highest impact is crushed stone of 16/32 mm from open-pit mining. As expected, crushed aggregates have larger impacts than rolled aggregates due to the mechanisms and Recycling Free Full-Text Environmental and
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Effect of cupola slag as a coarse aggregate on
The coarse aggregate is partially replaced by 30%, 35%, 40% and 50% with cupola slag without replacing the natural sand. All the mix proportions of designed concrete were studied for compressive strength at the age of 7 days and 28 days. The maximum compressive strength of 66.36 MPa was observed for 30% substitution on 28th That portion of an aggregate passing the 4.75 mm sieve and predominantly retained on the 75 µm sieve is called “fine aggregate” or “sand,” and larger aggregate is called “coarse aggregate”. Coarse aggregate may be available in several different size groups, such as 4.7–19 mm, or 19–37.5 mm. Fine aggregates generally consist ofSand: The Fine Aggregate SpringerLink
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Mine Waste as Resource: Indian Mining Scenario of Coal
Mine Waste as Resource: Indian Mining Scenario of Coal and Non Coal Mining Sector Sanniv Shome, Shushil Mhaske, K. Pathak, M S Tiwari respect to the conventional coarse aggregate (8). 3.6 Iron Ore Waste Rock Gayana B C reported that the workability of all the concreteQuartz sandstone (a mine waste) is used in cement concrete as a replacement of natural coarse aggregate. Quartz sandstone coarse aggregate, 10 383-1970, Indian Standard Specification for Coarse and Fine Aggregates from Natural Sources for Concrete, Bureau of Indian Standards, New Delhi, India. Google Scholar [18]Preliminary study on the use of quartz sandstone as a partial
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(PDF) Impacts of riverine sand mining on freshwater ecosystems
aggregate mining, ecosystems, rivers, sand mining, systematic review Received: 26 July 2019 Revised: 17 December 2019 Accepted: 18 December 2019 DOI: 10.1002/rra.3586Due to rapid urbanization in India more public construction activities were in progress. Hence it requires more concrete and intern more coarse aggregate. Mining of coarser aggregate again endanger environment. Recycled coarse aggregate were collected from the demolished waste and replaced by 7 to 35% at 7% intervals and the Assessment of usage of manufactured sand and recycled aggregate
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(PDF) A Study on Replacement of Coarse Aggregate with
One of the feasibility of coarse aggregate is reviewed based on wear with abrasion testing. This research was conducted by using an abrasion test using the Los Angeles TA-700 machine and SNI 2417:Coarse Aggregate makes the predominant part in concrete which by implication implies it turns into the key segment in the solid blend, finding an option in contrast to customary coarse total in a(PDF) Sustainable Use of Waste Material as Coarse Aggregate
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Performance of Concrete with Partial Replacement of Coarse Aggregate
The specific gravity and fineness modulus of sand are found to be 2.65 and 3.05. Coarse aggregate—coarse aggregate was passed through 80 mm sieve and retained on 4.75 mm sieve confirming IS: 383-1970 was used for concreting. The specific gravity and fineness modulus of coarse aggregate are found to be 2.695 and 7.7. 3.1.2 Concrete mixes with different types of coarse aggregates like dimension limestone waste, sandstone, basalt, and quartz are prepared at three different water cement ratio that are 0.35, 0.45, and 0(PDF) Comparison of Dimension Limestone Waste Coarse
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Preparation of Recycled and Multi-Recycled
The reuse of construction and demolition waste has become vitally important because of the requirements of environmental protection and sustainable development. The vibration mixing process is a new The global aggregates market size was valued at USD 463.3 billion in 2019 and is expected to grow at a compound annual growth rate (CAGR) of 3.3% from 2020 to 2027. The rapid growth of the construction industry, particularly in emerging economies of Asia Pacific and the Middle East & Africa, is expected to drive the aggregates market over theAggregates Market Growth Industry Report, 2020-2027
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Replacement of Coarse Aggregate With E-Waste
aboutInvestigation on Partial Replacement of Coarse Aggregate using E-Waste in ConcreteE-Waste (PCBs) 5%, 10%, 15%, 20%, 25% and 30% by weight of coarse aggregate. Quantity of cement, fine aggregate and coarse aggregate for one cube 1.5kg, 2.25kg and 4.5kg respectively.From the result it is observed that OPC with 15%In this experimental study, coarse aggregate is partially replaced with various percentages such as 15, 20, 25, and 30% replacement with over burnt brick bats with a fixed 2% crimped steel fibres. M60 grade concrete is design and tested on fresh concrete like slump test and hardened concrete like compressive, tensile and flexural Experimental Study on Partial Replacement of Coarse
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Symmetry Free Full-Text Classification of Coarse Aggregate
Traditional aggregate particle size detection mainly relies on manual batch sieving, which is time-consuming and inefficiency. To achieve rapid automatic detection of aggregate particle sizes, a mechanical symmetric classification model of coarse aggregate particle size, based on a deep residual network, is proposed in this paper. First, Excessive fines content with a high specific surface area would result in excessive water absorption, poor workability, poor paste-aggregate bonding and compactness [1,25,37]. As supplementary, the results of some other researchers who use GF to replace OPC [109–121] and coarse aggregate [122–128] can be found in the Preliminary study on the use of quartz sandstone as a partial
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PRODUCT MANUAL FOR COARSE AND FINE
Graded aggregate: 12.5 mm, 16 mm, 20 mm & 40 mm For Mass Concrete Small / Medium / Large/ Very large Coarse aggregates are further grouped into following groups based on size: Type of coarse aggregate Group I Group –II Single size aggregate 10 mm to 20 mm 40 mm to 63 mm Graded aggregate 12.5 mm to 20 mm 40 mmA considerable amount of WCS is produced globally. This research aims to utilise WCS as an alternative to natural coarse aggregate in self-compacting concrete (SCC). To achieve this goal, WCS was utilised in different percentages (0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%) as a natural coarse aggregate Environmental protection by using waste copper slag as a coarse
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